I recently was referred to this post by Greta Christina today, and felt I should link to it through my blog. It deals with atheist anger: why she has it, and why it's a good thing. She brings up many good points and there are great comments following the post.
Greta appears to be a good writer, and I will be visiting her blog more often to see what else she has to say. Give it a read, it is well-written and worth the time.